Hello! Noticed this bug which happens quite a bit with me, so I thought I'd pass it on.

If I'm playing with no WiFi, and the 'could not connect to game center' pop up appears, after selecting 'okay' from this pop up, the game resumes but you can't control the ship at all. In fact, the app becomes completely unresponsive to user input. You have to home button quit the app then go back in to be able to resume the game with full control.

Also, on a side note, I think if you collect a heart to make the ungulates follow you, then quit immediately and super quickly restart, the player character still has the effect of the heart power-up until it runs out.